97909 has 8 divisors (see below), whose sum is σ = 114048. Its totient is φ = 82320.

The previous prime is 97883. The next prime is 97919. The reversal of 97909 is 90979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97909 - 2⁹ = 97397 is a prime.

It is a house number.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399 + ... + 595.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2⁹⁷⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

97909 is a deficient number, since it is larger than the sum of its proper divisors (16139).

97909 is a wasteful number, since it uses less digits than its factorization.

97909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 97909 is about 312.9041386751. The cubic root of 97909 is about 46.0900881032.

The spelling of 97909 in words is "ninety-seven thousand, nine hundred nine".